code: def read_mlflow_creds() -> MlflowCreds:
      username_file, password_file = _read_mlflow_creds_from_file()
      username_env, password_env = _read_mlflow_creds_from_env()
      return MlflowCreds(
          username=username_env or username_file,
          password=password_env or password_file,
      )
  
file_path: mlflow/mlflow/utils/credentials.py
imports: import configparser
  import getpass
  import logging
  import os
  import subprocess
  from typing import NamedTuple, Optional, Tuple
  from mlflow.environment_variables import MLFLOW_TRACKING_PASSWORD, MLFLOW_TRACKING_USERNAME
  from mlflow.exceptions import MlflowException
label_desc: Use image node_id 4 for calling a global function with example usage: read_mlflow_creds() and returns: MlflowCreds